Dr Christoph Boes is a fifty six year old German, who lived in England for nineteen years. Due to increasing requests he made tuition his main profession. Over two hundred A-level students of all four main exam boards (AQA, Edexcel, OCR A and B) were clients in the last ten years.He began tutoring during his Chemistry study, in which he achieved a Masters of Science in Chemistry (first class degree) and a PhD in Biochemistry (first class degree). One pupil was a medical student, who did not like chemistry and tried to memorize all chemical formulas for his exam. After the basic rules were explained the student was able to derive the equations without much effort and said, "I did not know chemistry was so easy."Dr Boes worked for eighteen years in high profile, scientific research labs, all over the world, including T�bingen (Germany), Hamburg (Germany), Atlanta (USA), Vancouver (Canada), Cambridge (UK) and Leicester (UK). During this time he taught undergraduate university students and supervised Masters and PhD students.His emphasis lies on developing a solid foundation of knowledge and the ability to apply it. While tutoring he noticed that many students struggle with exam revision. They try to memorize too much in too short a period of time. They understand the need to summarize the facts, but are unsure how to do this. Revision guides are a great place to start, but still contain too many explanations. Dr Boes looked around for revision cards, but could not find anything suitable. Hence, he created his own, incorporating his extensive knowledge of exam questions, to present the essential facts in an easy to memorize form. He provided them to his students, who used them very successfully in their exams. They have now been published as books, so other pupils can benefit from them. There is also a revision website, with tips for successful exam preparation: https: //www.alevelchemistryrevision.co.uk/Contact details can be found on this website to offer an opportunity for comments.